Pain monitor aims to cut opioid use during surgery

NCT ID NCT04402242

Terminated Knowledge-focused Sponsor: Hopital Foch Source: ClinicalTrials.gov ↗

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested a device called the NOL monitor, which measures pain levels during anesthesia. The goal was to see if using this monitor could help doctors give less remifentanil (a strong painkiller) during major abdominal surgery. The study planned to include 90 adults, but it was stopped early, so the results are not complete.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

What this could lead to: If successful, this could show that NOL monitoring helps tailor pain medication during surgery, potentially reducing side effects.
What could go wrong: The study was terminated early, so we don't have enough data to know if it works. It was also a small, single-center trial.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

ABDOMINAL SURGERY

Contacts and locations

Locations

Foch Hospital

Suresnes, France, 92150, France
Hopital d'Instruction des Armées de Bégin

Saint-Mandé, Saint Mandé, 94160, France
Hôpital d'Instruction des Armées - Sainte-Anne

Toulon, Provence-Alpes-Côte d'Azur Region, 83800, France

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